package com.jiang.mapper;

import com.jiang.pojo.Emp;
import org.apache.ibatis.annotations.*;

import java.time.LocalDate;
import java.util.List;

@Mapper
public interface EmpMapper {

    /*
    // 查询记录数
    @Select("select count(*) from emp")
    public Long count();

        */
/**
     * 分页查询 获取数据

     */    /*

    @Select("select * from emp limit #{start},#{pageSize} ")
    public List<Emp> page(Integer pageSize,Integer start);
    */

    //@Select("select * from emp ")
    public List<Emp> list(String name, Short gender, LocalDate begin,LocalDate end);

    // 批量删除
    void delete(List<Integer> ids);

    // 新增员工
    @Insert("insert into emp(username, name, gender, image, job, entrydate, dept_id, create_time, update_time) " +
            "values (#{username},#{name},#{gender},#{image},#{job},#{entrydate},#{deptId},#{createTime},#{updateTime})")
    void insert(Emp emp);


    /**
     * 根据ID 查询员工信息
     * @param id
     * @return
     */
    @Select("select * from emp where id = #{id}")
    Emp getById(Integer id);

    /**
     * 更新员工信息
     * @param emp
     */
    void update(Emp emp);

    @Select("select * from emp where password = #{password} and username = #{username}")
    Emp getUsernameAndpassword(Emp emp);

    /**
     * 根据部门ID 删除属于该部门的员工
     */
    @Delete("delete from emp where dept_id = #{deptId}")
    void deleteByDeptId(Integer deptId);




}
